L6 / L7 seals belong to the family of rotating multi spring seals. These seals arc suitable for very high pressures - by far the highest in rotary multi spring seal category.

These seals find extensive use in industrial process pumps in the refinery, petrochemical, thermal and nuclear power plants.
Seal faces are designed and optimized using CAE for minimum beat generation.

Thus the seal can work in the liquids at temperatures very close to their boiling points.

Drive to the seal ring is through a special clutch type arrangement, which enables the seal to take heavy torques.


Springs are housed in the drive collar and are exposed to the process media thus getting automatically cleaned by centrifugal forces.

 

Face Material

Metal Components

Secondary Sealing

Performance Capabilities

  • Pressure
  • Temperature
  • Speed

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SiC x Carbon

S.S.316

Viton/ Perfluoro- elastomer/ PTFE

 

Vacuum to 8.0 MPa
-200 C to 2500 C
Up to 25 m/s
(consult ESSIL. for applications other than above limits.)



Designed and developed by WaveFront Technologies, www.wftech.net